Granulates containing micro-organisms

Details Granulates containing micro-organisms Granulates containing micro-organisms

1997-05-20

1998-09-08

Levy, Neil S.

Drug, bio-affecting and body treating compositions

Preparations characterized by special physical form

Biocides; animal or insect repellents or attractants

424405, 424406, 424410, 424418, 424 935, 504117, 4352541, A01N 2526, A01N 6300

Patent

active

058042083

DESCRIPTION:

BRIEF SUMMARY
The present invention relates to novel pesticides consisting of granules in which the carrier material is semolina and in which the surface of this carrier material carries microorganisms suitable for controlling pests, their preparation and use for controlling pests.
It has already been disclosed that certain microorganisms (bacteria, fungi and viruses) can be pathogenic to pests, such as insects, nematodes or phytopathogenic fungi, and thus be employed in controlling pests. In many cases, however, great difficulties are encountered in making available suitable microorganism preparations (formulations) having a standardized activity and commercial applicability because the formulation of the microorganisms is complicated and often adversely affects their activity and storage stability.
This invention now provides novel pesticides consisting of granules comprising microorganisms, characterized in that the carrier material of the granules is semolina and the microorganisms suitable for controlling pests are located on the surface of this carrier material.
Pesticides are all compositions according to the invention suitable for controlling undesirable animal and plant pests and nuisance pests (such as harmful arthropods and nematodes, broad-leaved weeds and grass weeds, harmful bacteria and fungi). In general, the activity of these pesticides is based on the antagonistic action (parasitization, toxin formation, competition behaviour) of the micororganisms used against the pests, resulting in their containment or destruction. The pesticides are preferably employed in the areas of agriculture, forestry, horticulture, household and hygiene, protection of stored products and materials, in particular for the protection of plants or harvested products. Preferred pesticides according to the invention are those suitable for controlling pests encountered in the soil region.
Preferred compositions according to the invention are the pesticides, preferably for controlling animal pests (preferably arthropods and nematodes, in particular insects and nematodes, very particularly preferably insects) and of microbial pests (such as harmful bacteria and fungi), in particular, however, of animal pests.
Microorganisms which can be used according to the invention are all microorganisms (bacteria and fungi) capable of forming resting forms, such as spores or conidia.
The microorganisms have to be able to affect the vitality or reproductive capacity of the pests to be controlled in such a way that they can be sufficiently controlled by the action of the pesticides. For this purpose, the microorganisms which can be used according to the invention have to be capable of releasing substances into the surroundings which have a corresponding action on the pests or else are capable of parasitizing the pests sufficiently.
The microorganisms used according to the invention should not exhibit any pathogenic properties with regard to warm-blooded animals and, in addition, should not damage beneficial animals (e.g. earthworms, bees) to a considerable extent.
The formation of resting forms, in particular blastospores, spores and conidia, can be effected by a multitude of microorganisms (bacteria, fuingi), preferably by fuingi from the taxonomic classes of the Phycomycetes, Ascomycetes, for example Chaetomium, Basidiomycetes and Deuteromycetes, in particular by the representatives of the Fungi imperfecti, such as, for example, various species of Aspergillus, Altemnaria, Aphanocladium, Beauveria, Coniothyrium, Colletotrichum, Meria (Drechmeria), Penicillium, Fusarium, Gliocladium, Pseudocercosporella, Trichoderma, Verticillium, Paecilamyces, in particular also of Metarhizium and Gliocladium, especially preferably of Metarhizium. Numerous strains of these fungi exhibit an antagonistic activity towards soil-borne, phytopathogenic fungi, such as, for example, Trichoderma hamatum and Glioclacium roseum, Gliocladium virens or apathogenic strains of otherwise phytophathogenic strains, such as, for example, apathogenic Fusarium oxysporum strains, agains

REFERENCES:
patent: 5074902 (1991-12-01), Connick, Jr. et al.
patent: 5418164 (1995-05-01), Andersch et al.
patent: 5589390 (1996-12-01), Higuchi et al.

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